CN201262580Y - Com-rail pressure sensor - Google Patents
Com-rail pressure sensor Download PDFInfo
- Publication number
- CN201262580Y CN201262580Y CNU2008201097485U CN200820109748U CN201262580Y CN 201262580 Y CN201262580 Y CN 201262580Y CN U2008201097485 U CNU2008201097485 U CN U2008201097485U CN 200820109748 U CN200820109748 U CN 200820109748U CN 201262580 Y CN201262580 Y CN 201262580Y
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- CN
- China
- Prior art keywords
- pressure sensor
- pressure
- common rail
- integrated circuit
- rail pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an automobile-used common rail pressure sensor. A pressure-sensitive element and transmission leads connected with the pressure-sensitive element are installed in a stainless steel shell; protective glue and an integrated circuit module are also arranged in the shell; the protective glue is arranged between the pressure-sensitive element and the integrated circuit module, and the pressure-sensitive element, the integrated circuit module and connecting leads are solidified therein; furthermore, an anti-interference unit and an electromagnetic compatibility unit are arranged. One end of the shell is connected with an aeronautic linker; a screw structure used for being connected with other parts is arranged on the surface of the other end of the shell; and a shielding layer is arranged on the surfaces of the aeronautic linker and transmission cables. The pressure sensor has simple and reasonable designing structure, can effectively improve the reliability of the product, solves the problems of electromagnetic compatibility and anti-interference, causes the electromagnetic shielding level to achieve the degree of 200V/m, and causes the automobile-used common rail pressure sensor to have high protective property without affecting the original characteristics of the sensor.
Description
Technical field
The utility model relates to a kind of sensor, especially a kind of common rail pressure sensor that is used for the test of automobile injection pressure.
Background technology
Automobile-used pressure transducer is the critical component of Auto Electronic Controlled System as one of information source of Auto Electronic Controlled System, also is one of core content of technical field of automotive electronics research.Automobile-used pressure transducer is mainly used in the monitoring and the sensing of gas, oil pressure in air inlet, braking, oil circuit, the vehicle body security system on automobile.
A kind of as in the sensor of common rail pressure sensor, be one of automobile common rail pressure electric-control system critical component, the common rail pressure electric-control system is the up-to-date electronic control technology of existing motor car engine, can effectively improve the motor vehicle emission technical merit, reduce and pollute, make the environmental protection automobile.Existing common rail pressure sensor state of the art:
1, only be applicable to motor vehicles for civilian use, adopt plastic casing protection, motor vehicles for civilian use connector to be connected with unshielded cable on the product structure, Electro Magnetic Compatibility and antijamming capability all can't reach harsh level requirement.
2, the connecting line of pressure-sensing device and integrated circuit modules does not carry out safeguard procedures, and reliability is low, and the situation that is easy to generate broken string takes place.
3, " electromagnetic compatibility and the anti-jamming circuit " of existing technology all is integrated in the electronic control unit system, and in non-common rail pressure sensor, measure lacks specific aim, can not effectively prevent or reduce from common rail pressure sensor to the electromagnetic compatibility and the anti-interference problem that are produced the electronic control unit connecting line.
The utility model content
For solving the problem of above-mentioned existence, the utility model provides a kind of project organization advantages of simple, can improve product reliability, effectively solve a kind of common rail pressure sensor of electromagnetic compatibility and anti-interference problem.
For achieving the above object, the utility model provides a kind of common rail pressure sensor, the transmission cable that comprises the stainless steel metal shell, is installed on described interior shell pressure sensitive element and is connected with described common rail pressure sensor, described enclosure interior also is provided with protection glue and integrated circuit modules, and described protection glue is arranged between described sensitive element and the described integrated circuit modules.
The inside solidification of described protection glue is useful on the connecting line that connects described sensitive element and described integrated circuit modules.
Described enclosure interior is integrated with anti-interference unit and electromagnetic compatibility unit.
One end of described housing is connected with the aviation connector, and the pressure that is provided with of the other end is introduced the hole, and the surface also is provided with and is used for the helicitic texture that is connected with miscellaneous part.
The surface of described aviation connector and described transfer wire also is provided with electro-magnetic screen layer.
Compared with prior art, the utlity model has following advantage:
The common rail pressure sensor that the utility model provides, the transmission cable that comprises stainless steel casing, is installed on the interior shell pressure sensitive element and is connected with described pressure-sensing device, enclosure interior also is provided with protection glue and integrated circuit modules, protection glue is arranged between pressure-sensing device and the integrated circuit modules, the inside of protection glue is arranged at the connecting line that is used to connect described pressure-sensing device and integrated circuit modules, this structure is integrated anti-interference unit and electromagnetic compatibility unit.One end of housing is connected with the aviation connector, and the other end also is provided with pressure and introduces the hole, and the surface also is provided with and is used for the helicitic texture that is connected with miscellaneous part, and the surface of aviation connector and transmission cable also is provided with screen layer.The utility model project organization advantages of simple, connecting line between pressure sensor and the anti-interference integrated circuit modules is solidified in protection glue inside, improved product reliability, electromagnetic compatibility and anti-interference problem have effectively been solved, make the electromagnetic screen level reach the degree of 200V/m, when not influencing the sensor primary characteristic, make its integral body more possess the performance of high protection.
Description of drawings
Fig. 1 is the utility model one-piece construction synoptic diagram.
The main element symbol description is as follows:
1 stainless steel casing, 2 pressure-sensing devices
3 anti-interference unit and electromagnetic compatibility unit 4 protection glue and integrated circuit modules
5 aviation connectors, 6 transmission cables
7 helicitic textures
Embodiment
Fig. 1 is the utility model one-piece construction synoptic diagram, the inside of stainless steel casing 1 is equipped with pressure-sensing device 2, anti-interference unit and electromagnetic compatibility unit 3, protection glue and integrated circuit modules 4, protection glue and integrated circuit modules 4 are arranged between pressure-sensing device 2 and anti-interference unit and the electromagnetic compatibility unit 3, and pressure-sensing device 2 also is connected with transmission cable 6.Also being provided with between pressure-sensing device 2 and anti-interference unit and the electromagnetic compatibility unit 3 can interconnective connecting line (describing among the figure), connecting line solidifies in the inside of protection glue 4, owing to adopt protection glue that connection is protected, thereby improved product whole reliability energy.Because integrated anti-interference unit and electromagnetic compatibility unit, so make its product effectively solve electromagnetic compatibility and anti-interference problem.One end of stainless steel casing 1 is connected with aviation connector 5, the other end is provided with pressure and introduces hole (not describing among the figure), its surface also is provided with and is used for the helicitic texture 7 that is connected with miscellaneous part, also be provided with electro-magnetic screen layer (describing among the figure) in the outside of transmission cable 6 and aviation connector 5, and use simultaneously with the stainless steel metal shell, make the electromagnetic screen level of its product integral body can reach the degree of 200V/m, when not influencing the sensor primary characteristic, make its integral body more possess the performance of high protection.
The inner installation of the common rail pressure sensor that the utility model provides part is few, and volume is little, and assembling is simple; Total does not have mechanical contact, has overcome the disadvantage of existing machinery formula pressure transducer; Owing to be provided with the electromagnetic screen protective seam, effectively solved electromagnetic compatibility and anti-interference problem simultaneously, not only improved the precision of sensor, also improved the reliability of automobile-used pressure transducer at product surface.
More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.
Claims (5)
1, a kind of common rail pressure sensor, the transfer wire that comprises the stainless steel metal shell, is installed on described interior shell pressure sensitive element and is connected with described pressure-sensing device, it is characterized in that, described enclosure interior also is provided with protection glue and integrated circuit modules, and described protection glue is arranged between described pressure-sensing device and the described integrated circuit modules.
2, common rail pressure sensor as claimed in claim 1 is characterized in that, the inside solidification of described protection glue is useful on the lead that is connected that connects described pressure-sensing device and described integrated circuit modules.
3, common rail pressure sensor as claimed in claim 1 is characterized in that, described enclosure interior is integrated with anti-interference unit and electromagnetic compatibility unit.
4, common rail pressure sensor as claimed in claim 1 is characterized in that, an end of described housing is connected with the aviation connector, and the pressure that is provided with of the other end is introduced the hole, and the surface also is provided with and is used for the helicitic texture that is connected with miscellaneous part.
5, common rail pressure sensor as claimed in claim 4 is characterized in that, the surface of described aviation connector and described transfer wire also is provided with electro-magnetic screen layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201097485U CN201262580Y (en) | 2008-08-07 | 2008-08-07 | Com-rail pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201097485U CN201262580Y (en) | 2008-08-07 | 2008-08-07 | Com-rail pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201262580Y true CN201262580Y (en) | 2009-06-24 |
Family
ID=40809057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201097485U Expired - Fee Related CN201262580Y (en) | 2008-08-07 | 2008-08-07 | Com-rail pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201262580Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7827867B2 (en) * | 2006-07-19 | 2010-11-09 | Continental Automotive Gmbh | Pressure sensing device |
-
2008
- 2008-08-07 CN CNU2008201097485U patent/CN201262580Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7827867B2 (en) * | 2006-07-19 | 2010-11-09 | Continental Automotive Gmbh | Pressure sensing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20120807 |